diff --git a/docs/docs/lips/functional-helpers.md b/docs/docs/lips/functional-helpers.md
index 4bd0a5c7..c19b87a7 100644
--- a/docs/docs/lips/functional-helpers.md
+++ b/docs/docs/lips/functional-helpers.md
@@ -56,6 +56,8 @@ This is common function from Python. LIPS Scheme version works exactly the same
 ;; ==> (5 6 7 8 9)
 (range 0 10 2)
 ;; ==> (0 2 4 6 8)
+(range 0 -10 -2)
+;; ==> (0 -2 -4 -6 -8 -10)
 ```
 
 If used with one argument it returns `n` numbers starting from `0`.